RE: Shark XV Build Thread  
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RE: Shark XV Build Thread - 9/24/2008 12:10:51 AM   
franklin_m


 

Posts: 130
Joined: 11/17/2005
From: Lemoore, CA, USA
Status: offline 		Dave,

As the proud pilot of one of the smaller Shark's, this bigger brother is a really beautiful airplane. One the smaller one, I finally got the bugs worked out of my BigMig 0.049...now getting 19,000 RPM out of it with a Cox rubber duckie prop! It just sings.

On a related note, my 0.049 version is unthrottled, and I found a trick for making hand launches a bit easier. I trim the airplane for a steady but defined climb off the handlaunch. However, as the readers will know, were I to leave it this way, the plane will want to climb dramatically as it picks up speed. Rather than re-trim, I programmed in nose down pitch trim with increasing throttle. That way, my left stick becomes a separate trim slider. The nice thing is that when the power quits, all I do is pull the left stick back to idle, taking out the mixed elevator, and I'm trimmed pretty nicely for landing.

Can't wait to buy a couple S-XV kits....

Frank

(in reply to rainedave)
       Post #: 26

RE: Shark XV Build Thread - 9/24/2008 1:36:18 AM   
rainedave



Posts: 5317
Joined: 7/21/2005
From: Greensboro, NC, USA
Status: offline 		Frank, brilliant!!! I love that idea and I'm going to give it a try. Glad you like the S-XV.

My Solartex arrived today, so no excuses for not finishing up the project.

I might build a second one for this little gem. HB .15:

David

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< Message edited by rainedave -- 9/24/2008 1:37:42 AM >

(in reply to franklin_m)
       Post #: 27

RE: Shark XV Build Thread - 9/24/2008 4:19:05 AM   
SGC


 

Posts: 1036
Joined: 12/8/2004
From: OAKEYQueensland, AUSTRALIA
Status: offline 		Dam Dave,
I've got a couple of Enya 15's and 19's looking for homes too, so I guess my son and I will need a couple of the SS XV's too.
Stewart

(in reply to rainedave)
       Post #: 28

RE: Shark XV Build Thread - 9/25/2008 1:11:52 AM   
iflyg450


 

Posts: 349
Joined: 7/4/2006
From: townsebd, GA, USA
Status: online 		MUST HAVE ONE! Would an OS 25 VF-DF engine be to much????

(in reply to SGC)
       Post #: 29

RE: Shark XV Build Thread - 9/30/2008 5:35:05 PM   
rainedave



Posts: 5317
Joined: 7/21/2005
From: Greensboro, NC, USA
Status: offline 		I think a hot .25 is too much. I designed it to be just strong enough with a .15, yet still as light as possible.

The wing and tail are covered.

David

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(in reply to iflyg450)
       Post #: 30

RE: Shark XV Build Thread - 9/30/2008 6:08:49 PM   
planebuilder66



Posts: 1032
Joined: 11/6/2003
From: Mystic, CT, USA
Status: offline 		Silkspan and dope or koverall? Or is it something else?

(in reply to rainedave)
       Post #: 31

RE: Shark XV Build Thread - 9/30/2008 8:18:51 PM   
exocet-RCU


 

Posts: 129
Joined: 1/17/2002
From: Shakopee, MN, USA
Status: offline 		This is the translucent Solartex, right? Is Solartex the same as Coverite 21st Century iron-on fabric? My LHS has some of that but I have never used it before. Who did you order the Solartex from?

edited: Also, while I'm at it, what is Micafilm, made by Coverite? Anyone used it before and with what results?

Tim

< Message edited by exocet-RCU -- 9/30/2008 8:22:22 PM >

(in reply to planebuilder66)
       Post #: 32

RE: Shark XV Build Thread - 10/1/2008 12:27:30 AM   
Mr67Stang



Posts: 2339
Joined: 4/26/2006
From: Raeford, NC, USA
Status: offline 		Put me down for one

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       Post #: 33

RE: Shark XV Build Thread - 10/1/2008 12:51:44 AM   
BSARGE


 

Posts: 193
Joined: 6/1/2006
From: Gibsonville, NC, USA
Status: offline
quote:

ORIGINAL: exocet-RCU

This is the translucent Solartex, right? Is Solartex the same as Coverite 21st Century iron-on fabric? My LHS has some of that but I have never used it before. Who did you order the Solartex from?

edited: Also, while I'm at it, what is Micafilm, made by Coverite? Anyone used it before and with what results?

Tim


I have ordered it from Balsa Usa before.....it's good stuff....very easy to work with!

-Bill

(in reply to exocet-RCU)
       Post #: 34

RE: Shark XV Build Thread - 10/1/2008 5:38:03 AM   
rainedave



Posts: 5317
Joined: 7/21/2005
From: Greensboro, NC, USA
Status: offline 		Yep, it's translucent Solartex (they call them Vintage colors). They make opaque colors, too, but they're slightly heavier. And as Bill mentioned, I got it from BUSA.

https://www.balsastore.com/store/proddetail.php?prod=Solartex_2_Vintage_Meter_rolls

David

(in reply to BSARGE)
       Post #: 35

RE: Shark XV Build Thread - 10/3/2008 5:56:51 PM   
rainedave



Posts: 5317
Joined: 7/21/2005
From: Greensboro, NC, USA
Status: offline 		It looks like I'll have it ready to fly tomorrow. I've installed the servos and push rods. I'm using a Futaba 250mah square pack. The plane balances dead on the main spar which is the 33% point. It weighs 24ozs without the bottom hatch over the servos.

By putting the servos behind the wing I was able to get short and straight push rod runs. No slop or flexing.

David

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< Message edited by rainedave -- 10/4/2008 5:44:03 AM >

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       Post #: 36

RE: Shark XV Build Thread - 10/4/2008 5:41:39 AM   
rainedave



Posts: 5317
Joined: 7/21/2005
From: Greensboro, NC, USA
Status: offline 		More pics...

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< Message edited by rainedave -- 10/4/2008 5:49:13 AM >

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       Post #: 37

RE: Shark XV Build Thread - 10/4/2008 5:52:12 AM   
combatpigg



Posts: 9990
Joined: 11/22/2003
From: arlington, WA, USA
Status: online 		RD, she looks fantastic! Looks like it would lap a Doubler at least twice in a heat.

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(in reply to rainedave)
       Post #: 38

RE: Shark XV Build Thread - 10/4/2008 6:07:26 AM   
rainedave



Posts: 5317
Joined: 7/21/2005
From: Greensboro, NC, USA
Status: offline 		Thanks cp! I went with a lighter NiMH pack and lost a little over an ounce. With my building methods it would be hard for me to do much better than this weight (23.8ozs).

I might build one without the rudder servo, no landing gear, use contest balsa and my Norvel .074 and I could maybe get under 20ozs. But, we'll see tomorrow how this one flies.

David

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< Message edited by rainedave -- 10/4/2008 6:11:15 AM >

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       Post #: 39

RE: Shark XV Build Thread - 10/4/2008 6:14:17 AM   
fizzwater2


 

Posts: 812
Joined: 8/16/2004
From: Paola, KS, USA
Status: offline 		Dave, if you ever do stick your HB 15 in it, let us know how it does. I have a NIB HB15 that ought to have a proper home some day..

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